Qhov sib txawv tseem ceeb ntawm cov tshuaj tiv thaiv acid thiab nag lossis daus yog cov tshuaj tiv thaiv acid muaj xws li qhov nruab nrab ntawm cov kua qaub los ntawm lub hauv paus los yog lwm qhov thaum nag lossis daus cov tshuaj tiv thaiv suav nrog kev tsim cov nag lossis daus tom qab ua tiav cov tshuaj tiv thaiv.
Muaj ntau hom tshuaj tiv thaiv xws li kev sib xyaw ua ke, kev sib tsoo, kev hloov pauv ib leeg thiab kev hloov pauv ob zaug, kev sib txuas, kev rov ua dua tshiab, thiab lwm yam. Acid puag thiab nag lossis daus yog ob hom.
Acid Base Reaction yog dab tsi?
Ib qho tshuaj tiv thaiv acid yog tshuaj lom neeg cov tshuaj tiv thaiv uas cov kua qaub reacts nrog lub hauv paus los yog vice versa. Ntawm no, muaj kev tsis sib haum xeeb tshwm sim; acid neutralizes lub hauv paus los yog vice versa; yog li ntawd, peb tuaj yeem hu nws qhov kev tawm tsam nruab nrab thiab. Tsis tas li ntawd, cov khoom kawg ntawm cov tshuaj tiv thaiv no yog cov ntsev ua los ntawm cov anions ntawm acid thiab cations ntawm lub hauv paus ntxiv rau cov dej molecules. Hauv cov tshuaj tiv thaiv no, kev sib tsoo thiab kev tsim daim ntawv cog lus yuav tshwm sim.
Ntxiv mus, cov tshuaj tiv thaiv acid tuaj yeem tshwm sim ob txoj hauv kev: yog tias cov tshuaj tiv thaiv tshwm sim ntawm cov kua qaub thiab lub hauv paus muaj zog, ces nws yog qhov tseem ceeb ntawm cov tshuaj tiv thaiv ntau. Qhov ntawd txhais tau tias; cov tshuaj tiv thaiv tau mus txog thaum cov kua qaub thiab / lossis cov hauv paus tau noj tag. Txawm li cas los xij, yog tias cov tshuaj tiv thaiv tshwm sim ntawm cov kua qaub tsis muaj zog thiab / lossis lub hauv paus tsis muaj zog, yuav muaj qhov sib npaug. Tab sis, hom tshuaj tiv thaiv no tsis yog qhov ntau vim tias cov kua qaub tsis muaj zog lossis lub hauv paus tsis muaj zog yog cov tshuaj tsis haum.
Piv txwv li, cov tshuaj tiv thaiv ntawm HCl thiab NaOH yog qhov ntau vim HCl yog cov kua qaub muaj zog thiab NaOH yog lub hauv paus muaj zog.
HCl(aq) + Na(OH)(aq) → H2 O + NaCl(aq)
Tab sis, cov tshuaj tiv thaiv ntawm adenine thiab hydrogen phosphate tsis yog qhov ntau vim tias hydrogen phosphate yog cov kua qaub tsis muaj zog. Ces qhov equilibrium yog raws li nram no:
AH + HPO42− ⇌ A- + H 2PO−4
nag xob nag cua yog dab tsi?
Cov tshuaj tiv thaiv nag lossis daus yog ib hom tshuaj tiv thaiv uas muaj nag lossis daus thaum kawg ntawm cov tshuaj tiv thaiv. Ntawm no, cov reactants yog ob soluble ntsev. Cov ntsev no sib xyaw ua ke los muab cov ntsev insoluble peb hu ua precipitate. Tsis tas li ntawd, cov nag lossis daus tuaj yeem muaj nyob rau hauv ob txoj kev sib txawv: raws li kev ncua lossis cov khoom hnyav uas tso rau hauv qab ntawm lub thawv.
Yog tias nws yog kev ncua, peb tuaj yeem cais nws ntawm cov tshuaj tiv thaiv sib xyaw ntawm centrifugation, decantation lossis pom. Cov kua dej ntxiv tom qab kev sib cais ntawm cov nag lossis daus yog hu ua supernatant.
Dab tsi yog qhov txawv ntawm Acid Base Reaction thiab Precipitation Reaction?
Acid puag thiab nag lossis daus yog ob hom tshuaj tiv thaiv. Qhov sib txawv tseem ceeb ntawm cov tshuaj tiv thaiv acid thiab nag lossis daus cov tshuaj tiv thaiv yog tias cov tshuaj tiv thaiv acid muaj xws li qhov nruab nrab ntawm cov kua qaub los ntawm lub hauv paus los yog vice versa whereas nag lossis daus cov tshuaj tiv thaiv muaj xws li tsim cov precipitate tom qab ua tiav cov tshuaj tiv thaiv. Cov txheej txheem ntawm cov tshuaj tiv thaiv acid muaj xws li kev sib xyaw ntawm anions thiab cations los tsim cov ntsev thiab dej, thaum cov txheej txheem ntawm nag lossis daus cov tshuaj tiv thaiv suav nrog kev tsim cov ntsev insoluble los ntawm cov ntsev soluble.
Summary – Acid Base Reaction vs Precipitation Reaction
Nyob rau hauv cov ntsiab lus, cov kua qaub puag thiab nag lossis daus yog ob hom tshuaj tiv thaiv. Qhov sib txawv tseem ceeb ntawm cov tshuaj tiv thaiv acid thiab nag lossis daus cov tshuaj tiv thaiv yog tias cov tshuaj tiv thaiv acid muaj xws li qhov nruab nrab ntawm cov kua qaub los ntawm lub hauv paus los yog vice versa whereas nag lossis daus cov tshuaj tiv thaiv muaj xws li tsim los ntawm precipitate tom qab ua tiav cov tshuaj tiv thaiv.
